Discipline yourself, and others won't need to.
Make greatness attainable by all.
1. Be on time. 2. Never criticize a teammate. 3. Never use profanity.
As a leader, you will receive a large amount of praise and criticism and you should not unduly affected by either.
What a leader learns after you've learned it all counts most of all.
No one can really honestly be the very best, no one.